onn. Electronics Duster Compressed Gas Cleaner, 10 oz, 4-Pack, length 2.56, width 10.31, height 8.39 inches

Surf Onn 4-pack electronics duster is a typical compressed gas cleaner solution. It is perfect for people that user computers and electronics that need an occasional dusting. This is especially useful for keyboards which are known to fill up with dirt and debris over time. Like other gas dusters I've used over time, it comes with a little plastic straw that is inserted into the bottle to direct air. The bottle itself is metal with a plastic piece on top. You have to break off the little tab in order to start using the can. I would not say this one is any worse or better than other canned gas dusters. It is after all just blowing air out of a can so I would always just buy the cheapest one available at the store. The good thing about this Surf Onn brand is that it comes in a 4 pack, while most others are only 2 pack. Being that I only use it occasionally, the 4 pack should last me a long time, probably over a year. The way you use the compressed gas cans is pretty simple. Remove the small tab on top of spray nozzle, then point nozzle towards the electronics (never point at people), hold can upright and pull the trigger. They recommend putting can about 2 inches away from electronics. And when you're pulling the trigger, you should pull it in a series of short bursts rather than one long burst. Another thing they also say is to never shake the can. I don't know why that is, but when you use these gas cans, they get really cold on the outside of it while they're used.